Vamotinib (PF-114) is a potent, selective and orally active tyrosine kinase inhibitor. Vamotinib inhibits the autophosphorylation of BCR/ABL and BCR/ABL-T315I. Vamotinib induces apoptosis. Vamotinib shows anti-proliferative and anti-tumor activity. Vamotinib has the potential for the research of resistant philadelphia chromosome-positive (Ph+) leukemia.